wallet: more user friendly print_ring

It can now take a txid (to display rings for all its inputs),
and will print rings in a format that set_ring understands

src/simplewallet/simplewallet.cpp

@@ -1297,9 +1297,10 @@ bool simple_wallet::export_raw_multisig(const std::vector<std::string> &args)
 bool simple_wallet::print_ring(const std::vector<std::string> &args)
 {
   crypto::key_image key_image;
+  crypto::hash txid;
   if (args.size() != 1)
   {
-    fail_msg_writer() << tr("usage: print_ring <key_image>");
+    fail_msg_writer() << tr("usage: print_ring <key_image|txid>");
     return true;
   }
 
@@ -1308,20 +1309,32 @@ bool simple_wallet::print_ring(const std::vector<std::string> &args)
     fail_msg_writer() << tr("Invalid key image");
     return true;
   }
+  // this one will always work, they're all 32 byte hex
+  if (!epee::string_tools::hex_to_pod(args[0], txid))
+  {
+    fail_msg_writer() << tr("Invalid txid");
+    return true;
+  }
 
   std::vector<uint64_t> ring;
+  std::vector<std::pair<crypto::key_image, std::vector<uint64_t>>> rings;
   try
   {
     if (m_wallet->get_ring(key_image, ring))
-    {
+      rings.push_back({key_image, ring});
-      std::stringstream str;
+    else if (!m_wallet->get_rings(txid, rings))
-      for (const auto &x: ring)
-        str << x << " ";
-      success_msg_writer() << tr("Ring size ") << std::to_string(ring.size()) << ": " << str.str() << tr(" (absolute)");
-    }
-    else
     {
       fail_msg_writer() << tr("Key image either not spent, or spent with mixin 0");
+      return true;
+    }
+
+    for (const auto &ring: rings)
+    {
+      std::stringstream str;
+      for (const auto &x: ring.second)
+        str << x<< " ";
+      // do NOT translate this "absolute" below, the lin can be used as input to set_ring
+      success_msg_writer() << epee::string_tools::pod_to_hex(ring.first) <<  " absolute " << str.str();
     }
   }
   catch (const std::exception &e)
@@ -2239,8 +2252,8 @@ simple_wallet::simple_wallet()
                            tr("Export a signed multisig transaction to a file"));
   m_cmd_binder.set_handler("print_ring",
                            boost::bind(&simple_wallet::print_ring, this, _1),
-                           tr("print_ring <key_image>"),
+                           tr("print_ring <key_image> | <txid>"),
-                           tr("Print the ring used to spend a given key image (if the ring size is > 1)"));
+                           tr("Print the ring(s) used to spend a given key image or transaction (if the ring size is > 1)"));
   m_cmd_binder.set_handler("set_ring",
                            boost::bind(&simple_wallet::set_ring, this, _1),
                            tr("set_ring <key_image> absolute|relative <index> [<index>...]"),

src/wallet/api/wallet.cpp

@@ -1971,6 +1971,30 @@ bool WalletImpl::getRing(const std::string &key_image, std::vector<uint64_t> &ri
     return true;
 }
 
+bool WalletImpl::getRings(const std::string &txid, std::vector<std::pair<std::string, std::vector<uint64_t>>> &rings) const
+{
+    crypto::hash raw_txid;
+    if (!epee::string_tools::hex_to_pod(txid, raw_txid))
+    {
+        m_status = Status_Error;
+        m_errorString = tr("Failed to parse txid");
+        return false;
+    }
+    std::vector<std::pair<crypto::key_image, std::vector<uint64_t>>> raw_rings;
+    bool ret = m_wallet->get_rings(raw_txid, raw_rings);
+    if (!ret)
+    {
+        m_status = Status_Error;
+        m_errorString = tr("Failed to get rings");
+        return false;
+    }
+    for (const auto &r: raw_rings)
+    {
+      rings.push_back(std::make_pair(epee::string_tools::pod_to_hex(r.first), r.second));
+    }
+    return true;
+}
+
 bool WalletImpl::setRing(const std::string &key_image, const std::vector<uint64_t> &ring, bool relative)
 {
     crypto::key_image raw_key_image;

src/wallet/api/wallet.h

@@ -166,6 +166,7 @@ public:
     virtual bool blackballOutputs(const std::vector<std::string> &pubkeys, bool add);
     virtual bool unblackballOutput(const std::string &pubkey);
     virtual bool getRing(const std::string &key_image, std::vector<uint64_t> &ring) const;
+    virtual bool getRings(const std::string &txid, std::vector<std::pair<std::string, std::vector<uint64_t>>> &rings) const;
     virtual bool setRing(const std::string &key_image, const std::vector<uint64_t> &ring, bool relative);
     virtual void segregatePreForkOutputs(bool segregate);
     virtual void segregationHeight(uint64_t height);

src/wallet/api/wallet2_api.h

@@ -766,6 +766,9 @@ struct Wallet
     //! gets the ring used for a key image, if any
     virtual bool getRing(const std::string &key_image, std::vector<uint64_t> &ring) const = 0;
 
+    //! gets the rings used for a txid, if any
+    virtual bool getRings(const std::string &txid, std::vector<std::pair<std::string, std::vector<uint64_t>>> &rings) const = 0;
+
     //! sets the ring used for a key image
     virtual bool setRing(const std::string &key_image, const std::vector<uint64_t> &ring, bool relative) = 0;
 

src/wallet/wallet2.cpp

@@ -1521,6 +1521,14 @@ void wallet2::process_outgoing(const crypto::hash &txid, const cryptonote::trans
     entry.first->second.m_subaddr_account = subaddr_account;
     entry.first->second.m_subaddr_indices = subaddr_indices;
   }
+
+  for (const auto &in: tx.vin)
+  {
+    if (in.type() != typeid(cryptonote::txin_to_key))
+      continue;
+    const auto &txin = boost::get<cryptonote::txin_to_key>(in);
+    entry.first->second.m_rings.push_back(std::make_pair(txin.k_image, txin.key_offsets));
+  }
   entry.first->second.m_block_height = height;
   entry.first->second.m_timestamp = ts;
   entry.first->second.m_unlock_time = tx.unlock_time;
@@ -4390,6 +4398,13 @@ void wallet2::add_unconfirmed_tx(const cryptonote::transaction& tx, uint64_t amo
   utd.m_timestamp = time(NULL);
   utd.m_subaddr_account = subaddr_account;
   utd.m_subaddr_indices = subaddr_indices;
+  for (const auto &in: tx.vin)
+  {
+    if (in.type() != typeid(cryptonote::txin_to_key))
+      continue;
+    const auto &txin = boost::get<cryptonote::txin_to_key>(in);
+    utd.m_rings.push_back(std::make_pair(txin.k_image, txin.key_offsets));
+  }
 }
 
 //----------------------------------------------------------------------------------------------------
@@ -4545,8 +4560,6 @@ void wallet2::commit_tx(pending_tx& ptx)
     m_additional_tx_keys.insert(std::make_pair(txid, ptx.additional_tx_keys));
   }
 
-  add_rings(ptx.tx);
-
   LOG_PRINT_L2("transaction " << txid << " generated ok and sent to daemon, key_images: [" << ptx.key_images << "]");
 
   for(size_t idx: ptx.selected_transfers)
@@ -5490,6 +5503,29 @@ bool wallet2::get_ring(const crypto::chacha_key &key, const crypto::key_image &k
   return m_ringdb->get_ring(key, key_image, outs);
 }
 
+bool wallet2::get_rings(const crypto::hash &txid, std::vector<std::pair<crypto::key_image, std::vector<uint64_t>>> &outs)
+{
+  for (auto i: m_confirmed_txs)
+  {
+    if (txid == i.first)
+    {
+      for (const auto &x: i.second.m_rings)
+        outs.push_back({x.first, cryptonote::relative_output_offsets_to_absolute(x.second)});
+      return true;
+    }
+  }
+  for (auto i: m_unconfirmed_txs)
+  {
+    if (txid == i.first)
+    {
+      for (const auto &x: i.second.m_rings)
+        outs.push_back({x.first, cryptonote::relative_output_offsets_to_absolute(x.second)});
+      return true;
+    }
+  }
+  return false;
+}
+
 bool wallet2::get_ring(const crypto::key_image &key_image, std::vector<uint64_t> &outs)
 {
   crypto::chacha_key key;

src/wallet/wallet2.h

@@ -289,6 +289,7 @@ namespace tools
       uint64_t m_timestamp;
       uint32_t m_subaddr_account;   // subaddress account of your wallet to be used in this transfer
       std::set<uint32_t> m_subaddr_indices;  // set of address indices used as inputs in this transfer
+      std::vector<std::pair<crypto::key_image, std::vector<uint64_t>>> m_rings; // relative
     };
 
     struct confirmed_transfer_details
@@ -303,10 +304,11 @@ namespace tools
       uint64_t m_unlock_time;
       uint32_t m_subaddr_account;   // subaddress account of your wallet to be used in this transfer
       std::set<uint32_t> m_subaddr_indices;  // set of address indices used as inputs in this transfer
+      std::vector<std::pair<crypto::key_image, std::vector<uint64_t>>> m_rings; // relative
 
       confirmed_transfer_details(): m_amount_in(0), m_amount_out(0), m_change((uint64_t)-1), m_block_height(0), m_payment_id(crypto::null_hash), m_timestamp(0), m_unlock_time(0), m_subaddr_account((uint32_t)-1) {}
       confirmed_transfer_details(const unconfirmed_transfer_details &utd, uint64_t height):
-        m_amount_in(utd.m_amount_in), m_amount_out(utd.m_amount_out), m_change(utd.m_change), m_block_height(height), m_dests(utd.m_dests), m_payment_id(utd.m_payment_id), m_timestamp(utd.m_timestamp), m_unlock_time(utd.m_tx.unlock_time), m_subaddr_account(utd.m_subaddr_account), m_subaddr_indices(utd.m_subaddr_indices) {}
+        m_amount_in(utd.m_amount_in), m_amount_out(utd.m_amount_out), m_change(utd.m_change), m_block_height(height), m_dests(utd.m_dests), m_payment_id(utd.m_payment_id), m_timestamp(utd.m_timestamp), m_unlock_time(utd.m_tx.unlock_time), m_subaddr_account(utd.m_subaddr_account), m_subaddr_indices(utd.m_subaddr_indices), m_rings(utd.m_rings) {}
     };
 
     struct tx_construction_data
@@ -1059,6 +1061,7 @@ namespace tools
     void set_ring_database(const std::string &filename);
     const std::string get_ring_database() const { return m_ring_database; }
     bool get_ring(const crypto::key_image &key_image, std::vector<uint64_t> &outs);
+    bool get_rings(const crypto::hash &txid, std::vector<std::pair<crypto::key_image, std::vector<uint64_t>>> &outs);
     bool set_ring(const crypto::key_image &key_image, const std::vector<uint64_t> &outs, bool relative);
     bool find_and_save_rings(bool force = true);
 
@@ -1227,8 +1230,8 @@ BOOST_CLASS_VERSION(tools::wallet2::multisig_info::LR, 0)
 BOOST_CLASS_VERSION(tools::wallet2::multisig_tx_set, 1)
 BOOST_CLASS_VERSION(tools::wallet2::payment_details, 3)
 BOOST_CLASS_VERSION(tools::wallet2::pool_payment_details, 1)
-BOOST_CLASS_VERSION(tools::wallet2::unconfirmed_transfer_details, 7)
+BOOST_CLASS_VERSION(tools::wallet2::unconfirmed_transfer_details, 8)
-BOOST_CLASS_VERSION(tools::wallet2::confirmed_transfer_details, 5)
+BOOST_CLASS_VERSION(tools::wallet2::confirmed_transfer_details, 6)
 BOOST_CLASS_VERSION(tools::wallet2::address_book_row, 17)
 BOOST_CLASS_VERSION(tools::wallet2::reserve_proof_entry, 0)
 BOOST_CLASS_VERSION(tools::wallet2::unsigned_tx_set, 0)
@@ -1428,6 +1431,9 @@ namespace boost
       }
       a & x.m_subaddr_account;
       a & x.m_subaddr_indices;
+      if (ver < 8)
+        return;
+      a & x.m_rings;
     }
 
     template <class Archive>
@@ -1472,6 +1478,9 @@ namespace boost
       }
       a & x.m_subaddr_account;
       a & x.m_subaddr_indices;
+      if (ver < 6)
+        return;
+      a & x.m_rings;
     }
 
     template <class Archive>